CN102822718A - Focusing lens system - Google Patents
Focusing lens system Download PDFInfo
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- CN102822718A CN102822718A CN2010800551216A CN201080055121A CN102822718A CN 102822718 A CN102822718 A CN 102822718A CN 2010800551216 A CN2010800551216 A CN 2010800551216A CN 201080055121 A CN201080055121 A CN 201080055121A CN 102822718 A CN102822718 A CN 102822718A
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- Prior art keywords
- lens
- front surface
- angle
- led
- well
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/005—Electric lighting devices with self-contained electric batteries or cells the device being a pocket lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
- F21V14/065—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors in portable lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/006—Refractors for light sources applied to portable lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A lens for a flashlight or other lighting unit provides for focusing light from a source, such as an LED, to provide a light beam adjustable between a spot beam and a wide beam. The lens includes a lens body with a front face, a rear LED-receiving well, and a side surface extending between the front face and the rear well. The front face includes a central surface surrounded by an annular concave surface. The rear well includes a space for the LED to be adjusted in position. The rear well space is defined by a concavely-curved sidewall and a concavely-curved base. The concave curvature of the sidewall and base may be Bezier curves.
Description
The cross reference of related application
The application is the U.S. Patent application No.12/572 that submitted on October 2nd, 2009,910 the application that continues, and require the right of priority of this application, the whole instructions of this application is incorporated herein with way of reference.
Invention field
The present invention relates to a kind of being used for produces the lens of light beam from flashlamp or other lighting unit such as the light source of light emitting diode (LED).These lens can combine with the governor motion of the focus that is used to change light beam, and can be contained in the structure of support of lens, light source and governor motion.Such structure also can comprise power supply, controller, interconnect device and electron device.
Background of invention
Be provided for the lens of flashlamp and other lighting unit in a variety of forms, these lens have about the common shape of light along axis (the being optical axial) symmetry of its guiding usually.Several kinds of such lens have comprised the hole in the lens rear end of contiguous light source.In the hole, light source can be along the optical axial adjusting position.Usually, regulate the light beam of the variation that light source causes with respect to the position of the metapore of lens sending from the lens front surface.Yet the ability of prior art lens is confined to the maximum intensity of a light beam is combined with the roughly homogeneity of angle pencil of ray.
The prior art lens also are provided with the central convex lens surface at front surface usually, are received in the lens at light, at intralens reflection or from the place of lens emission, this surface combines with at least one nonreentrant surface that adds.In the prior art, additional nonreentrant surface possibly be regarded as for will suitably being converged to light beam from the light of light source necessary.It is smooth optical receiving surface, light reflective surface and light emission surface that the prior art lens alternately are provided with when in xsect, observing.Such flat surfaces also possibly be regarded as for optically focused or manufacturing purpose necessary.
Summary of the invention
The lens combination of describing among the application provides a kind of lens that can combine with light source and governor motion.Lens combination can be attached in flashlamp or other lighting unit, and is provided for assembling the light from light source.Light emitting diode or LED are suitable light sources, but can use other light source such as incandescent lamp tube or fluorescent tube.Light beam can be adjustable between a light beam and angle pencil of ray.
Lens can comprise lens body, the side surface that this lens body has front surface, back LED receiving compartment or well and between front surface and back well, extends.Front surface comprises the central surface that is surrounded by the recessed surface of annular.Back well comprises the space that is limited concave curve sidewall and concave curve bottom, is used for the adjusted LED in the position.The bow of sidewall and bottom can be a Bezier.
Lens combination can comprise shell structure, and this shell structure manufactures two parts and has and is used to make a part of governor motion that moves with respect to another part.Usually, LED will be connected to the part of housing, and lens are connected to another part.
The side surface of lens body can limit oval curve in the cross section.Side surface is generally light reflective surface, and reflection is incided the light on it in lens body.Observe from lens body is inner, in the cross section, limit concave curve usually as the side surface of reverberator.From the lens body visual observation, side surface limits convex curve usually.
The central surface of lens body is generally convex surface, and thereby comprise usually the center on surface before point.The annular surface of the front surface of lens body can extend to the edge, front forward, and the front is more forward along the most preceding point than central surface.Lens body also can comprise the edge, outer front on the inclined-plane that is limited between annular surface and the side surface.
The sidewall of well and the concave curve of bottom can be Beziers, perhaps use other curve.The edge can extend around the back well, and the back well adjacent with back edge can have tapering, from mould, takes out helping.
Adopt the flashlamp of lens combination can comprise having two-part shell structure, governor motion, LED and lens.The main body of lens can comprise side surface, has the back well of bottom and sidewall and have central surface and the front surface of annular surface.In general, in this lens body, bottom and sidewall are that light gets into the surface, and the central surface of front surface and annular surface be light emission surface, and side surface is a light reflective surface.Except central surface was generally convex surface, all these surfaces can be concave surfaces.
Lighting unit can comprise power supply, for example battery or AC-DC converter, and this AC-DC converter has the regulation voltage waveform with the electron device compatible with LED.For example, can use pulse-width modulator to regulate effective brightness of LED.
Lens body is formed by the solid transparent material such as PMMA usually, and this material is molded or otherwise is configured as the single-piece that is used for total internal reflection (TIR).
Brief description
Fig. 1 is the cut-open view that is used for according to the lens body of the lens combination of the embodiment of this instructions.
Fig. 2 is the cut-open view of the lens body of Fig. 1, and it has adopted along the light source of optical axial adjustable position.
Fig. 3 A-3D shows anaclasis and the reflection that when moving in the back well of light source at lens body, forms the light beam (the 3A angle pencil of ray is to 3D point light beam) that changes.
Fig. 4 is the view sub-anatomy of lens combination; This lens combination has: the two housing sections structure; This shell structure comprises head and the main part with outline that fingers portion is provided and has governor motion; The slidably mount pad of head on main part for example is to allow head moving with respect to main part; With at LED on the part and the lens on another part, and be shown as lens between the antelabium of the cap of head by the inner nut holding position.
Fig. 5 is the partial sectional view of the lens combination of assembling, shows head moving with respect to main part.
Fig. 6 is the end-view of lens combination, shows CS and lashing syndeton.
Fig. 7 is the external view of the embodiment of lens combination, and wherein the outline of head is provided with breach in fingers portion.
Fig. 8 is the external view of the embodiment of lens combination, and wherein the outline of head is provided with breach and button in fingers portion.
Fig. 9 is the external view of the embodiment of lens combination, and wherein the outline of head is provided with breach in fingers portion.
The detailed description of preferred embodiment
Fig. 1 shows the lens 10 that are used for converging light.Lens 10 can comprise lens body 12, and lens body 12 has front surface 14, such as the back cavity 16 of well and the side surface 18 that between front surface 14 and back well 16, extends.Front surface 14 comprises the central surface 20 that is surrounded by annular surface 22, and annular surface 22 can limit concave curve in the cross section.Back well 16 restriceted envelopes 24, in space 24, LED or other light source adjustable position (Fig. 2,3 and 5).
Concave curve shape in bottom and the sidewall can be to be suitable for the Any shape making and use.The curve of sidewall 26 is generally Bezier.The preferred Bezier of sidewall that is used for the back well can comprise adjacent with the bottom of well with respect to the first about 74 ° angle S1 of datum line RL and the about 90 ° second angle S2 with respect to datum line RL adjacent with the back edge of well, and curve changes between first angle and second angle according to the standard of Bezier.
The curve of bottom 28 can be roughly arc.The typical radius of such bowl line is not less than about 38mm.
The curve of the annular surface 22 of front surface 14 is generally Bezier.The preferred Bezier that is used for annular surface 22 can comprise adjacent with the forward position of the front surface 14 32 first about 48 ° angle A 1 and about 20 ° second angle A 2 with respect to datum line RL adjacent with the central surface of front surface 14 20 with respect to datum line RL.
The side surface 18 of lens 10 limits oval curve usually on the cross section, as shown in Figure 1.Side surface 18 is generally light reflective surface.That is to say that this surface is usually at lens body 12 reflects light (referring to for example Fig. 3 C-3D).Side surface 18 can be in the cross section upper limit phasing be the curve of concave surface for the light of its reflection.
The measured value of the embodiment of lens described herein is typical for the medium size lens combination, for example, has around the lens combination of about 1.25 inches external diameter of lens.For littler and bigger lens combination, the measured value of lens can respective change.As an example, the lens 10 typical measured value that in large-scale lens combination, can provide for this paper is big at least about twice.
The annular surface 22 of the front surface 14 of lens body 12 can extend to forward position 32 forward.Usually, forward position 32 is more forward than the most preceding point 34 of central surface 20.Forward position or outer 32 can be included in the inclined-plane 35 between annular surface and the side surface, and inclined-plane 35 has the width at least about 1mm.Inclined-plane 35 can have the width for required lens sizes and operating characteristic selection, and only as an example, its width can be about 1.5mm, about 1.6mm, about 2.6mm or about 3.0mm.
Back well 16 has the internal diameter at least about 9mm in the back along 30 places usually.Back well 16 can have the internal diameter for required lens sizes and operating characteristic selection, and only as an example, this internal diameter can be about 9.8mm, about 12.6mm, about 19.4mm or about 22.1mm.Back well 16 can and the back have the tapering between about 2 ° and about 3 ° along 30 adjacents, around the well of back, remove mold component with convenient.
As visible among Fig. 2, such as the light source of LED 36 preferably along the optical axial OA in the well 16 of back roughly on the position from typical starting position shown in the solid line through the centre position P1 and P2 to the final position P3 adjustable.Adjusting can be continuous, perhaps can be provided with backstop or detent at the place, selected location.Can adopt and be fit to any position adjustments scope that certain lenses size, design and required light beam change.Usually, this scope is extremely about 6mm of about 5mm, and other instance of scope comprises about 6.1mm, about 6.8mm, about 14.0mm or about 16.9mm.The position backmost of LED 36 can be positioned at datum line RL place or below, perhaps LED 36 can the back well 16 above datum line RL in beginning.Usually, back well 16 is dark for about 9mm, and other instance of the degree of depth comprises about 12.8mm, about 15.9mm, about 23.2mm or about 28.6mm.LED 36 can move forward in well that about 3mm to 5mm locates in the bottom 28, other limit of the action required characteristic selection of perhaps mobile most lens combination.Usually, compare convex bending, the bow of sidewall 26 and bottom 28 allows the mobile and bigger structure of the increase of LED and the supporting structure in the well 16 of back thereof.
The preferred embodiment that for example is used for the lens of medium size lens combination has made up the position adjustments scope of surface width and the about 6.1mm of the internal diameter of the height of the lens width of about 20.7mm, about 12.8mm, about 9.8mm, about 1.6mm.Can select other combination for the action required characteristic.Usually, such size can change at least about ± 10%.
As visible among Fig. 3 A-D, the light beam of variation between angle pencil of ray (Fig. 3 A) and arrow beam of light or some light beam (Fig. 3 D) is provided with respect to the LED position adjustments of lens.The angle that the some light beam can be provided at about 50% time pact of maximum intensity+/-4.3 ° distributes.The instance of angle pencil of ray is that the angle of the about 50% time pact+/-20 ° in maximum intensity distributes.Utilize the design of present embodiment, be no more than under the situation of about 5mm in the position adjustments of LED, light can be changed to angle pencil of ray from a light beam.Among Fig. 3 A-3D each shows the expression into the light LR of exemplary lens and the calculating of LED structure.As visible among the figure, lens 10 are directed to a large portion light LR in the required light beam usually, and estimate that the light LR of less part can be transmitted to beyond the required light beam.
Shown in Fig. 4-9, the lens combination 38 that is used for convergent beam can comprise shell structure 40, and shell structure 40 comprises for example main body 42, second portion head 44 and be used to governor motion 46 that first is moved with respect to second portion for example of first.Governor motion 46 is preferably the slidably erecting frame of head 44 on the main body 42, perhaps alternately can engage or allow other suitable mechanism of the relative position of user's adjustment housings part for the screw thread between part 42 and 44.
The lens combination 38 that has a present embodiment of described governor motion can make light beam have maximum intensity about 50% time at least about+angle pencil of ray that/-20 ° angle distributes.Can believe, for this angle pencil of ray, the roughly intensity uniformly between lens combination 38 is provided at and distributes at least about+/-10 ° angle.Can believe that also compare the similar lens that among well sidewall thereafter, back bottom, preceding annular surface and/or side surface, adopt one or more plane surfaces or nonreentrant surface, lens combination 40 provides the intensity of increase for the some light beam.
As visible in the Figure 4 and 5, can comprise shell structure with the above governor motion, LED and lens according to the flashlamp 48 of present embodiment.Head 44 can comprise cap 50, and it has the opening 52 that is limited the forward position 32 adjacent antelabium 54 with lens 10.Carriage such as inner nut 56 can be threaded in the cap 50, with through forward position 32 and/or inclined-plane 35 are pressed against antelabium 54 and with lens 10 holding positions.Usually, antelabium 54 and forward position 32 and/or inclined-plane 35 overlap the part between about 0.5mm and the about 1.0mm, perhaps should be used for selecting so overlapping to certain lenses size and flashlamp required.Flashlamp 48 can be included in the transparent protection plate of lens 10 fronts, and perhaps lens can provide outside surface.Usually, in the main part 42 of shell structure 40, be provided with electron device, battery and cross tie part 58.
Shell structure can be by processing such as the metal of aluminium or steel or such as the plastics of ABS.Component materials can be chosen as and adapt in the operation such as the lighting unit in the rugged surroundings of very high or very low environment temperature.
Although illustrative purposes is described the present invention in detail for example; But be to be understood that; These details are just to this purpose, and those skilled in the art can change it under the situation that does not break away from the spirit and scope of the present invention, only if possibly receive the restriction of claim.
The applicant thinks that its subject matter of an invention comprises all novel and non-obvious combination and son combinations of various key element disclosed herein, characteristic, function and/or character.Single characteristic, function, key element or the character of the disclosed instance of neither one are necessary for all instances.Following claims limit and are regarded as novel and non-obvious some combination and son combination.Other combination of characteristic, function, key element and/or character and sub-combination can be through revising this claim or in the application or related application, proposing new claim and the prescription protection.Such claim, no matter its scope is compared original rights and is required different, wideer, narrower or be equal to, and is also contemplated as falling with in applicant's the subject matter of an invention.
Claims (38)
1. lens combination that is used for convergent beam, said system comprises:
Shell structure, said shell structure comprise first, second portion and are used to governor motion that said first is moved with respect to said second portion;
LED, said LED are connected to the said first of said housing; With
Lens; Said lens are connected to the said second portion of said housing, and said lens comprise lens body, and said lens body limits front surface, is used to admit the back-oriented chamber of said LED and the side surface that between said front surface and said back cavity, extends; Wherein, Said front surface comprises the central surface that is surrounded by annular surface, and said annular surface limits concave curve in the cross section, and said back cavity is dimensioned to admits said LED; Said chamber is limited sidewall and bottom, and wherein said sidewall and said bottom limit concave curve in the cross section;
Wherein, said governor motion and lens are provided for the adjusting to the said light beam between a light beam and angle pencil of ray.
2. lens combination according to claim 1; It is characterized in that; Said lens limit optical axial, and the said governor motion said first that is provided for said housing is no more than the moving range of about 5mm along said optical axial with respect to the said second portion of said housing.
3. lens combination according to claim 2 is characterized in that, said LED and said lens combine forming the diode image, and the said moving range that wherein is no more than about 5mm has significantly been dwindled said diode image.
4. lens combination according to claim 1 is characterized in that, the said side surface of said lens body limits oval curve on the cross section.
5. lens combination according to claim 1 is characterized in that, the said central surface of said lens body is a convex.
6. lens combination according to claim 1; It is characterized in that; The said annular surface of the said front surface of said lens body extends to the forward position forward, and point before the qualification of said central surface, and said forward position is more forward than the most preceding said point of said central surface.
7. lens combination according to claim 1 is characterized in that, the said front surface of said lens body also comprises the outer that is limited to the inclined-plane between said annular surface and the said side surface.
8. lens combination according to claim 7 is characterized in that said inclined-plane has the width that is no more than about 2mm.
9. lens combination according to claim 1 is characterized in that, the said concave curve of the said sidewall in said chamber is a Bezier.
10. lens combination according to claim 9; It is characterized in that; The said rear end of said lens body comprises the back edge that limits datum line, and the said Bezier of the said sidewall of said back cavity limit adjacent with the said bottom in said chamber with respect to said datum line the first about 74 ° angle and with said back along the adjacent second about 90 ° angle with respect to said datum line.
11. lens combination according to claim 1 is characterized in that, the said concave curve of the said annular surface of said front surface is a Bezier.
12. lens combination according to claim 11; It is characterized in that; Said rear end comprises the back edge that limits datum line; And the said front surface of said lens body comprises the forward position, and the said Bezier of the said annular surface of said front surface limits adjacent with said forward position with respect to the first about 48 ° angle of said datum line and about 20 ° second angle with respect to said datum line adjacent with the said central surface of said front surface.
13. lens combination according to claim 1 is characterized in that, said rear end comprises the edge, back, and said back cavity has the diameter at least about 10mm in said back along the place.
14. lens combination according to claim 1 is characterized in that, said rear end comprises the edge, back, and has the tapering at least about 2 ° with said back along adjacent said back cavity.
15. lens combination according to claim 1 is characterized in that, the back edge of said back cavity has and is no more than about 3 ° tapering.
16. lens combination according to claim 1 is characterized in that, the said concave curve of the said bottom of said back cavity is roughly arc, and has the radius that is not less than about 38mm.
17. lens combination according to claim 1 is characterized in that, the said concave curve of the said central surface of said front surface is roughly arc, and has the radius that is no more than about 7mm.
18. lens combination according to claim 1; It is characterized in that; Said governor motion can be made as make said light beam have maximum intensity about 50% time at least about+angle pencil of ray that/-20 ° angle distributes, and said angle pencil of ray is provided at the roughly intensity uniformly between distributing at least about+/-10 ° angle.
19. lens combination according to claim 1 is characterized in that, it is dark that said back cavity is at least about 9mm, and said governor motion is restricted to and provides said first housing parts to be no more than moving of about 5mm with respect to said second housing parts.
20. one kind is used to assemble light from LED so that the lens of light beam to be provided, said lens comprise:
Lens body, said lens body limit that front surface, back LED are admitted well and with the side surface of said front surface and the well interconnection of said back, wherein said front surface comprises the central surface that is surrounded by annular surface, and said annular surface limits concave curve in the cross section,
Wherein, said back well restriceted envelope, said LED can be in said space adjusting position, said well is limited sidewall and bottom, wherein said sidewall and said bottom limit concave curve in the cross section.
21. lens according to claim 20 is characterized in that, said lens are provided at approximately+and light beam that the angle of/-4.3 ° angle distribution peace treaty+/-20 ° changes between distributing, and said LED is no more than about 5mm in locational said adjusting.
22. lens according to claim 20 is characterized in that, the said side surface of said lens body limits oval curve on the cross section.
23. lens according to claim 20 is characterized in that, the said central surface of said lens body is a convex.
24. lens according to claim 20; It is characterized in that; The said annular surface of the said front surface of said lens body extends to the forward position forward, and point before the qualification of said central surface, and said forward position is more forward than the most preceding said point of said central surface.
25. lens according to claim 1 is characterized in that, the said front surface of said lens body also comprises the outer that is limited to the inclined-plane between said annular surface and the said side surface.
26. lens according to claim 25 is characterized in that, said inclined-plane has the width that is no more than about 2mm.
27. lens according to claim 20 is characterized in that, the said concave curve of the said sidewall of said back well is a Bezier.
28. lens according to claim 27; It is characterized in that; Said back well comprises the back edge that limits datum line, and the said Bezier of the said sidewall of said back well limit adjacent with the said bottom of said well with respect to said datum line the first about 74 ° angle and with the adjacent second about 90 ° angle in edge, said back of said well with respect to said datum line.
29. lens according to claim 20 is characterized in that, the said concave curve of the said annular surface of said front surface is a Bezier.
30. lens according to claim 29; It is characterized in that; Said back well comprises the back edge that limits datum line; And the said front surface of said lens body comprises the forward position, and the said Bezier of the said annular surface of said front surface limits adjacent with said forward position with respect to the first about 48 ° angle of said datum line and about 20 ° second angle with respect to said datum line adjacent with the said central surface of said front surface.
31. lens according to claim 20 is characterized in that, said back well has the diameter at least about 12mm at Hou Yanchu.
32. lens according to claim 20 is characterized in that, said rear end comprises the edge, back, and wherein has the tapering at least about 2 ° with said back along adjacent said back well.
33. lens according to claim 20 is characterized in that, said rear end comprises the edge, back, and wherein has along adjacent said back well with said back and be no more than about 3 ° tapering.
34. lens according to claim 20 is characterized in that, the said concave curve of the said bottom of said back well is roughly arc, and has the radius that is not less than about 38mm.
35. lens according to claim 20 is characterized in that, the said concave curve of the said central surface of said front surface is roughly arc, and has the radius that is no more than about 7mm.
36. lens according to claim 20 is characterized in that, said side surface is a light reflective surface, said side surface limits curve in the cross section, and the light that said curve reflects with respect to it is spill.
37. the flashlamp with the lens combination that is used for convergent beam, said flashlamp comprises:
Shell structure, said shell structure comprise first, second portion and be used to governor motion that said first is moved with respect to said second portion, the relatively moving between about 5mm and about 6mm of the said part of wherein said housing;
LED, said LED are connected to the said first of said housing; With
Lens, said lens are connected to the said second portion of said housing, and said lens comprise lens body; Said lens body limits front surface, is used to admit the back-oriented chamber of said LED and the side surface that between said front surface and said back cavity, extends; Wherein, said front surface comprises the central surface that is surrounded by annular surface, and said annular surface limits concave curve in the cross section; Said back cavity is dimensioned to admits said LED; Said chamber is limited sidewall and bottom, and wherein said sidewall and said bottom limit concave curve in the cross section, and
Wherein said governor motion and lens are provided between angle pencil of ray and some light beam, regulating said light beam; About 50% time of having in maximum intensity of said angle pencil of ray distributes at least about+/-20 ° angle, and the angle that said some light beam has about be no more than approximately for 50% time in maximum intensity+/-5 ° distributes.
38., it is characterized in that the said second portion of said housing comprises the clamping enhancement region according to the described flashlamp of claim 37.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/572,910 | 2009-10-02 | ||
| US12/572,910 US8152327B2 (en) | 2009-10-02 | 2009-10-02 | Focusing lens system |
| PCT/US2010/050958 WO2011041580A1 (en) | 2009-10-02 | 2010-09-30 | Focusing lens system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102822718A true CN102822718A (en) | 2012-12-12 |
Family
ID=43063904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800551216A Pending CN102822718A (en) | 2009-10-02 | 2010-09-30 | Focusing lens system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8152327B2 (en) |
| EP (1) | EP2483729A1 (en) |
| CN (1) | CN102822718A (en) |
| AU (1) | AU2010300529B2 (en) |
| WO (1) | WO2011041580A1 (en) |
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| CN102792092A (en) * | 2010-12-03 | 2012-11-21 | 海岸餐具公司 | Focusing lens system |
| CN102792092B (en) * | 2010-12-03 | 2016-08-10 | 海岸餐具公司 | Focus lens system |
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| CN110235043A (en) * | 2017-01-31 | 2019-09-13 | 伊顿智能动力有限公司 | For managing the optical system of the light from light emitting diode |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110080725A1 (en) | 2011-04-07 |
| AU2010300529A1 (en) | 2012-05-24 |
| US8152327B2 (en) | 2012-04-10 |
| EP2483729A1 (en) | 2012-08-08 |
| WO2011041580A1 (en) | 2011-04-07 |
| AU2010300529B2 (en) | 2014-04-10 |
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